JPH045658Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The invention relates to fences installed on site boundaries, parks, roads, balconies, terraces, etc.
More specifically, the present invention relates to a fence using aluminum material.

[Conventional technology] There are various types of metal fences installed at the boundaries of sites, parks, balconies, terraces, etc., but generally they are manufactured in a factory in a certain length, and
In many cases, this is carried to the site, installed on the foundation, and connected. This kind of metal fence is
Vertical beams made of round bars or steel pipes, etc. are placed at arbitrary intervals between the upper frame and the lower frame, which are made of square pipes, round pipes, etc. of a predetermined length made of steel, and the ends of each Widely used are those in which the upper and lower frames are welded together, or those in which a wire mesh is disposed between the upper and lower frames and the upper and lower wires are welded to the upper and lower frames, respectively.

However, such steel fences
Not only is it heavy and inconvenient to transport and install, but it also causes various problems such as rusting after a certain amount of use, which requires repainting from time to time, making maintenance troublesome.

In order to solve these problems, a lightweight fence made of aluminum has recently been proposed, as disclosed in Japanese Utility Model Publication No. 59-27466, which has almost the same structure as the above-mentioned steel fence. is put into practical use.

[Problems to be solved by the invention] The above-mentioned fences made of aluminum are popular because they are lighter than fences made of steel, but the upper and lower frames made of aluminum profiles have When attaching vertical beams made of aluminum round rods or pipes, screws are used, for example, as shown in the above-mentioned Japanese Utility Model Publication No. 59-27466, and the assembly work is extremely troublesome. Another problem was that they used thick round rods and pipes, making them more expensive than fences made of steel.

Furthermore, when forming the space between the upper frame and the lower frame in the shape of a wire mesh, a large number of thin aluminum wire rods are arranged to intersect between the upper frame and the lower frame, and both ends of the wires are connected to the upper frame and the lower frame. There were various problems such as spot welding at the intersections of each wire and spot welding at the intersections of each wire, making the wire more expensive.

The present invention was made to solve the above-mentioned problems, and its purpose is to obtain a fence made of lightweight and inexpensive aluminum material.

[Means for Solving the Problems] The present invention was made to solve the above problems and achieve the purpose. It is made of an aluminum profile and has grooves formed by two protrusions provided on the bottom surface. an upper frame made of aluminum; a floor made of an aluminum profile with through holes provided at approximately equal intervals in the length direction;
A lower frame having a fixing piece provided below the through hole, and two types of wire rods made of aluminum material and having different lengths, and a long wire rod is inclined between the upper frame and the lower frame. The lower end thereof is inserted into the through hole of the lower frame and welded to the fixed piece, and the upper end thereof is inserted into the groove of the upper frame and welded to one of the protruding pieces. A fence that is arranged between an upper frame and a lower frame so as to be inclined in the opposite direction to the long wire rod, the upper end of the long wire rod is inserted into a groove of the upper frame, and all or part of the intersection of both wire rods is welded. It provides:

[Operation] The fence according to the present invention is manufactured in a factory to an appropriate length, transported to the site, installed on the foundation, and then connected to adjacent fences.

[Embodiment] Fig. 1 is a perspective view of an embodiment of the present invention seen from the front;
FIG. 2 is an enlarged perspective view seen from the back, and FIG. 3 is a sectional view taken along line AA in FIG. In the figure, reference numeral 1 denotes an upper frame made of aluminum that also serves as a handrail.The main body is hollow and has a rectangular cross section.The lower surface of the bottom plate 11 has a short protrusion 12 on the front side, and on the back side. A long protruding piece 13 is provided, and a groove 14 is formed by both protruding pieces 12 and 13.
Note that the groove 14 is formed to have a width W that is approximately twice the diameter d of the wire rods 3 and 3a, which will be described later.

Reference numeral 2 is a lower frame made of an aluminum profile, which also serves as a cap for attachment to a foundation, etc. A decorative wall 21 is provided on the front side, and the upper end of this decorative wall 21 is bent almost horizontally toward the back side. Thereafter, it is bent downward at a position approximately corresponding to the inner wall of the front side projecting piece 12 of the upper frame 1, thereby forming a vertical wall 22. The lower end of the vertical wall 22 is extended almost horizontally to the back side to form a floor part 23, then bent downward, further bent to the front side, and then extended downward to form a fixed piece. 24 is formed. Note that the front side wall surface of the fixed piece 24 is similar to the rear side projecting piece 13 of the upper frame 1.
The wire rods 3, 3a, which will be described later, are placed on the floor 23 from the vertical wall 22.
Through holes 25 are provided at approximately equal intervals in the length direction at positions spaced apart by a distance approximately equal to the outer diameter d of.

Reference numerals 3 and 3a are aluminum wire rods installed intersectingly between the upper frame 1 and the lower frame 2, and one wire rod 3 is longer than the other wire rod 3a. In addition, in the embodiment, the wire rods 3 and 3a have an outer diameter d.
I used one with a diameter of 5 mm.

Next, the order of assembling the fence made up of the above-mentioned members will be explained.

(1) Insert the lower part of the long wire 3 into each through hole 25 of the lower frame 2, tilt it at a predetermined angle α with respect to the floor 23, and spot weld the lower end to the fixing piece 24 of the lower frame 2. , fixed 4.

(2) Align the end of the upper frame 1 with the end of the lower frame 2, insert the upper end of the long wire 3 fixed to the lower frame 2 into the groove 14 of the upper frame 1, and then 13 by spot welding 4.

(3) Connect the lower end of the short wire 3a to the floor 23 of the lower frame 2.
The lower part is placed along the vertical wall 22, and the upper end is inserted into the groove 14 of the upper frame 1 with the long wire 3 tilted by α with respect to the floor 23 in the opposite direction to the long wire 3. Cross the wire rod 3.

(4) All or part of the intersection point 31 of both wire rods 3 and 3a is fixed 4 by spot welding.

This completes the assembly of the fence. Note that the above assembly order shows an example, and is not limited to this.

In the above embodiment, the upper frame 1 is provided with protrusions 12 and 13 of different lengths, but both protrusions 1
2 and 13 may have the same length. Furthermore, the upper frame 1 and the lower frame 2 are not limited to the shapes shown in the drawings,
For example, as shown in FIGS. 4a, b, c, and d, changes can be made as appropriate.

[Effect of the invention] As is clear from the above explanation, the present invention arranges a large number of wire rods intersectingly between the upper frame and the lower frame made of aluminum shapes, and only the wire rods arranged on the back side are placed on the upper frame. The frame and the lower frame are fixed by spot welding, and all or part of the intersection with the wire placed on the front side is fixed by spot welding, so there are fewer welding points, which reduces costs and is therefore inexpensive. You can get a fence. In addition, since all spot welding is done from the back side, no traces of spot welding are visible from the front side, making it possible to create a fence with excellent aesthetics, which is highly effective in practical use.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of the embodiment of the present invention seen from the front;
Fig. 2 is an enlarged perspective view seen from the back side, Fig. 3 is a sectional view taken along line A-A in Fig. 2, and Fig. 4 a, b, c, and d are sectional views of other embodiments of the upper frame and lower frame. It is. 1...Top frame, 12, 13...Protrusion piece, 14...
Groove, 2... Bottom frame, 21... Decorative wall, 22... Vertical wall, 23... Floor plate, 24... Fixed piece, 25... Through hole, 3, 3a... Wire rod.

Claims (1)

[Scope of Claim for Utility Model Registration] An upper frame made of an aluminum profile with grooves formed by two protrusions provided on the bottom surface, and an aluminum profile with through holes provided at approximately equal intervals in the length direction. a lower frame having a fixed floor portion and a fixing piece provided below the through hole; and two types of wire rods made of aluminum and having different lengths, between the upper frame and the lower frame. A long wire is arranged at an angle, and its lower end is inserted into the through hole of the lower frame and welded to the fixed piece, and its upper end is inserted into the groove of the upper frame and welded to one of the projecting pieces. Further, a short wire is arranged between the upper frame and the lower frame at an angle opposite to the long wire, and its upper end is inserted into the groove of the upper frame to meet all or part of the intersection of both wires. A fence made by welding.